Buderus 124X Series User manual

5 643 983 – 3/2005 - updated 8/2007
Instruction for High Altitude
Conversion Kit for 124X Series Boilers
This kit and instruction are for converting the
G124X Series Boilers for use at elevations
above 8500ft.
REQUIRED INPUT RATES
G124X-18
66,660
BTU/H
G124X-25
92,700
BTU/H
G124X-32
119,250
BTU/H
THE CONVERSION SHALL BE
PERFORMED BY A
MANUFACTURER’S AUTHORIZED
REPRESENTATIVE IN
ACCORDANCE WITH THE
REQUIREMENTS OF THE
MANUFACTURES, PROVINCIAL OR
TERRITORIAL AUTHORITIES
HAVING JURISDICTION AND IN
ACCORDANCE WITH THE
REQUIREMENTS OF THE Can/CGA-
B149.1 or Can/CGA-B149.2
INSTALLATION CODES.
Notice: This manual must be retained for future reference!

5 643 983 – 3/2005 - update 8/2007
Parts list for converting the boilers for high
altitude installations
This kit contains the following parts:
Main Gas Burner orifice and gaskets
Conversion data plate to be filled out ands affixed to the
appliance
Conversion instructions
TO CONVERT THE BOILER FOR USE AT HIGH
ALTITUDE, THE FOLLOWING INSTRUCTIONS
SHALL BE ADHERED TO.
The boiler shall be converted prior to installation
1. Remove Control Access Panel from the boiler, fig 1.
2. Remove main gas orifices and washers from the burner
assembly, fig 2.
3. Install new orifices and washers supplied with kit. Ensure
orifices are the proper size for your boiler application per
the following tables:
4. Fill out the required information on the conversion plate
and affix the plate to the outside of the boiler jacket as
close as possible to the existing rating plate.
5. If the boiler has not been placed into operation, follow the
installation instruction in “the installation, Operation and
Maintenance Manual” supplied with the boiler.
Fig. 1
Fig.2
Orifice Sizes — Propane
Elevation in feet
0-8500 8501-12000
Model Orifice Size Kit Number Orifice Size Kit Number
G124X-18 1.80mm G124x18P85I1.75mm G124X18P12000I
G124X-25 1.75mm G124x25P85I1.70mm G124X25P12000I
G124X-32 1.70mm G124x32P85I1.65mm G124X32P12000I
Orifice Sizes — Natural Gas
Elevation in feet
0-8500 8501-12000
Model Orifice Size Kit Number Orifice Size Kit Number
mm08.2mm58.281-X421G G124X18N12000
mm07.2mm57.252-X421G G124X25N12000
G124X-32 2.70mm
Standard
Version 2.65mm G124X32N12000
Manifold Pressure
In inch wc
Model G124X-18 G124X-25 G124X-32
Natural 3.6 3.5 3.6
Propane 9.8 10.3 10.0
Buderus
50 Wentworth Avenue
Londonderry, NH 03053
Tel: [phone] •Fax: [phone]
www.buderus.net
Buderus reserves the right to make changes without
notice due to continuing engineering and technological
advances